[PATCH] D102854: [RISCV] Optimize or/xor with immediate in the zbs extension

[Ben Shi via Phabricator via llvm-commits]

benshi001 created this revision.
benshi001 added reviewers: craig.topper, MaskRay, asb, luismarques.
Herald added subscribers: vkmr, frasercrmck, evandro, apazos, sameer.abuasal, s.egerton, Jim, benna, psnobl, jocewei, PkmX, the_o, brucehoult, MartinMosbeck, rogfer01, edward-jones, zzheng, jrtc27, shiva0217, kito-cheng, niosHD, sabuasal, simoncook, johnrusso, rbar, hiraditya.
benshi001 requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

Perform the following optimization for or/xor with specific immediates.

(or r, imm) -> (BSETI (ori r, i0), i1)
(xor r, imm) -> (BINVI (xori r, i0), i1)


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D102854

Files:
  llvm/lib/Target/RISCV/RISCVInstrInfoB.td
  llvm/test/CodeGen/RISCV/rv32zbs.ll
  llvm/test/CodeGen/RISCV/rv64zbs.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D102854.346777.patch
Type: text/x-patch
Size: 9984 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20210520/6b2cdb78/attachment.bin>